Serving-spindle



G. M. MONTGOMERY ANO G. L. MASON. SERVING SPINDLE.

Patented Aug. 2, '1921.'

APPLICATION FILED OCT. 29| 1919.

I9 L Q lll IN VEN ToRS.

George M. Mongamery UNITED STATESA PATlazNTl GEORGE 1g; uoNTOmEnY, OE

WINDSOR Locxs,

orFfi c E A AND GEOERGE L. MASON, OF WARE- HOUSE POINT, OONNECTICUT, AssIeNOEs To THE J. E. MONTGOMERY Co., OE wnmson. Locks, CONNECTICUT, A CORPORATION.

SERVING-SPINDLE Application led Gctober 20, 1919. Serial No. 331,816.

eoMERY and GEORGE L. MAsoN, citizens of the United States, and residents of Windsor Locks and Warehouse Point, respectively, county of Hartford, State of Connectlcut, have inventedD certain new and useful I mprovements in Serving-spindles, of which Athe following is a speclcation.

This invention relates to serving spindles or heads of machines for winding or wrappingone strand about a secondstrandor .core of the same or a .different material.

Y While the present invention is adapted for use Generally in winding one strand about another, it has particular utillty in the textile industry Where, als, a matter of economy, it is important that thework be done at relatively high speeds.

A`device constructed in accordance vwith the present invention has peculiar practicability when employed to windv or wrap a metal ribbon abouta thread or core ofcotton or other pliable fabric, and thereforeby wayv of example, we describe the inventlon as applied 'to this use.

The presentinvention has as' one of its objects to provide novel features of conwound about the core.

struction in a servingl spindle whereby the covering strand is maintained under proper tension at all times so that it is uniformly The structure is of particular. advantage in that the .tension yunder whichthe covering strand is wound upon the core may be adjusted or changed, at will, during the operation of the device. It is a further object of the invention to provide a serving spindle or head which is simple in construction, and efficient and reliable in operation.

lIn thedrawings Awe-have illustrated the preferred embodiment of our invention, but 1t is of course understood that the construction may be' variously modified without departing vfrom the'spirit of the invention.

In the said drawings Figure'l-'is a longitudinal sectional View through a serving head in which our improvements are incorporated.

Fi 2 is an elevational view` with a portion broken away, and

Fg.y 3 is an enlarged perspectlve .view of our improved thread guide.

Referring to the drawings 1n detall; 1.0,

'Specication of Letters Patent.

'thereof is a spindle 11 rotatably .necessary periphery Patented Aug. 2, 1921.

designates a non-rotatab1e tubular guide through which the thread 13, forming the core, passes. Journaled about the tubular gulde 10 and terminating short of each end ball bearings 12 housed within a bearing box 14 which is fixed to a portion of the frame l5 of the machine in which the serving spindle is mounted. It is not deemed to show the constructions of the frame of the machine and the various instrumentalities which are associated with the serving head as they form no part of the present invention.

Tightly. fitting about one end of the box 14 is a cap 17 through which the tubular guide 10 passes. Mounted in an opening in the end wall of the cap 17 and in a manner so that it may be manually rotated is an adjustable nut 18, which may be knurled to glve a good rip, and this nut is screwed onto a' threa ed'portion 419 'of the tubular guide 10. The inner. end of the nut abuts positioned beagainst a friction washer 20, tween the end wall of the cap 17 and a metallic disk 21. The washer 2O and disk 21 are held against rotation by'a dowel pin 22. The threaded end of the tubular guide 10 is broached or splined to form a key-way 24-which receives a key 25 formed by a pin positioned in a radial opening in the disk 21. The bearing box-14 constitutes a reservoir for Oil.

Threaded into the forward end of the tubular guide 10 is a head 27 which is of greater diameter than the external diameter of the guide so as to extend therebeyond and lform an abutment 28. About the forward end of the spindle is a sleeve 29 which may rotate freely about the spindle 11 and `present illustrative disclosure, the external of the sleeve 29 and the opening- `through the spool 30 are similarly tapered so lthat the spool may be wedged onto the sleeve. The sleeve 29 has a iange or head 32 at i rear end.

carried by' Between the bearing box 14, and the sleeve 29 and fixed to` the, spindle 11 by means of a nut 33 is a ilier 34 having a pul# ley 35, about which passes a belt (not shown) driven in any suitable manner. Carried by the flier is a pivoted thread guide comprisingr a lever 36 and a wire 37 having an eye at its free end., One end or arm of the lever 36 is positioned behind thetlange 32 of the tension sleeve 29 and is normally urged thereagainst by means ofa spring 38 seated in a recess in the body portion of the tiier. At a point diametrically opposite to the thread guide is a pin 40 which serves to balance the flier.

The flier has one or more pins 42 over which the strand or ribbon 31 is passed. In the present case two pins, diametrically positioned, are provided so as to` balance the flier and so that when the flier is rotated in one direction the ribbon may be passed over one oi' the pins and when the flier is rotated in the opposite direction the ribbon may be y passedovcr the other pin.

`The operation of the device is briefly as follows The strand 13 is drawn, as is usual, thrmigh the -tubular guide, it being custon1a1 1 to pass the thread after the covering strand is applied thereto about a capstan and then wind it upon a spool.. The covering strand, such as the metal ribbon 31 is passed about one of ,the pins 42 and threaded through the eye of the thread guide 37 and I outwardly.

as the flierr is rotated theribbon will be laid in a spiral manner upon the thread 13. If during the winding operation, the tension upon the ribbon is lessened, the ribbon will become slightly slack with the result .that the tree end of the thread guide will swing Due to the force'ot` the spring 38, the arm of the lever 36 is forced against the flange 32 of the sleeve 29 and thus the I the ribbon is wound upon the strand 13 becomes too great lthe -tendency of the ribbon sleeve will be urged against the head 27g-of the tubular guide. Because of the increased friction between the forward end .of the sleeve 29 and the head 27,.a braking action takes effect Iwhich slows up the rotation of the sleeve and the spool carried thereby, so

that the tension on the ribbon is increased.v

In the event that the tension under which is to become more taut and urge the thread guide 37 inwardly and thereby swing the arm of the lever 36 away from the flange 32 of the sleeve. Thereupon the friction between the forward end of the sleeve and the head 27 is reduced so that the spool may rotate more freely. A

One of the important features of the present invention is that the tension under which the covering strand is wound upon thecore, may be quickly and readily changed or adjusted at will by an operator without stopping or otherwise interfering with the work. This is Aaccomplished .hy merely rotating .the .adjustable .nut 18 so as to .move the. non-rotatable .thread 'guide 10 longitudinally of the spindle 11 and thus'change the position of the abutment 28 which constitutes the part against which the spool carrying member or sleeve 29 frictionally engages. If it is desired that the ribbon 31 be wound tighter about-.the core, the nut 18 is rotated in a direction to-feed the tubular guide rearwardly so as 'to increase the friction between `the forward end of the sleeve 29 and the abutment 28 on the guide. if it is desired that the covering strand be loosely wound on 4the core, the nut 18 is @rotated in the opposite direction so as to move the abut; ment 28 away `from the ier and reduce the friction between -the sleeve and the A abutment 28. i

The thread uide shownA in ythe drawin has features o novelty and advantage.

will be noted particularly 'from Fig. 3 that in one edgeor vface of the lever 36, :there is a Vh ole or recess 44 into which one end of the wire 37 of the thread guide is positioned.'

The lever -on its opposite-edgeor vface and adjacent its outer end is'biurcated to form a slot 45 which opens into a groove 46intheside of the lever. It will readily -be seen that in placing the wire 37 in ,position one .end thereof is placed in the hole 44: and the wire is then sprung lor bent into theposition shown .in dotted lines off Fig. 3 and then when the thread guide is released it will spring into Vthe slot 45.

We claim-44 1. A ,serving spindle having a fier, -a spool, means for automaticallyl controlling the tension under which -a strand isdrawnV Jfrom the spooland means operable during the flier for changing the relation between.-

said controlling means and spool-and thereby adjust the tension of the "str-anti.

3. A serving-spindle, a'iier, a 'spool,-mea'ns carried by the Hier for automatically :controlling the 'tension under which Ia strand is drawn from the spool, and means or regulating said controlling means operable independntly of said flier.

4. A serving-spindle'havingia ier, a spool, f

means carried by the ier or automatically controlling the tensionunder which a strand is withdrawn lfrom 1the-spool, and vmeans normalily stationary during the operation of thel ier for c'hangingthe `tension of lsaid stran 5. serving spindle having einem To- 13o tatable spool carrfying member, means carried by the Hierv or automatically controlling the tension under which a strand is withdrawn from said member, a part' member adapted to frictionally engage said gulde, and means carried by the Hier for automatically controlling the friction between said spool carrying member and guide to thereby control the tension under which a strand is withdrawn from the spool carrying member.

7. A serving spindle having a non-rotatable threadguide, a Hier, a spool carrying member adapted to frictionally engage said guide, means carried by the Hier forautomatically controlling the friction 'between said spool carrying member and guide to thereby control the tension under which a strand is 'withdrawn from said spool carrying member, and means for moving said guide .and thereby change the tension of the strand. 1

8. A serving spindle having a non-rotap table longitudinally movable thread guide, a

'spindle j ournaled on said thread guide, a Hier carried by said spindle, a spool carrying sleeve journaled on and movable longitudinally of said spindle and adapted to frictionally engage a ortion of said thread guide, means carried) by said Hier for automatically controlling the friction between said sleeve and thread guide, and means for moving the-A ide longltudinally to change the tension o the strand.

9. .A serving spindle having a longitudinally movable thread guide provided with an abutment, a sleeve journaled on said guide, bearings carrying said spindle, a bearing box housing said bearings, an adjusting nut threaded on said guide and rotatably mounted in said bearing box, a Hier carried by said spindle, a tension sleeve j ou'rnaled on and longitudinally movable of said slot opens, and a wire said spindle and adapted to frictionally engage against the abutment on said guide, and a threadl guide yieldingly urging said sleeve into engagement with said abutment.

10. A vserving spindle having a spool carrying member, a Hier, a pivoted thread guide on the Hier, and a spring yieldingly urging a portion of the thread guide against said sleeve.A

11. A thread guide having a part provided With a hole in one face and a slot in another face, and a wire having one end positioned in said hole and extending through said slot.

12. A thread guide having a art vprovided with a hole in one face, a s ot in another face and a groove in its side into which having one end positioned in said hole v and extending through said vgroove and slot.

13. A servlng spindle having a thread guide provided with an abutment at itsfor- Ward end, a Hier rotatably mounted thel on, a .spool carrying member rotatably mounted on said guide between said Hier andabutment and adapted to frictionall engage the latter, means carried by said ier and engaging said spool carrying member for automatically controlling the tension under which a strand is drawn therefrom, and means for longitudinally moving said guide to Vary the distance between said Hier and abutment and thereby change the tension on .the strand.

' eno. M. MoNTGoMERY.

GEORGE L. MAsoN.

guide for moving the same longitudi- 

